Specifications
| Chipset | AMD B840 |
| CPU | Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors Socket AM5 |
| Memory | 4x DDR5 UDIMM, Maximum Memory Capacity 256GB Memory Support DDR5 8000 – 5600 (OC) MT/s / 5600 – 4800 (JEDEC) MT/s Ryzen™ 9000 Series Processors max. overclocking frequency: • 1DPC 1R Max speed up to 8000+ MT/s • 1DPC 2R Max speed up to 6400+ MT/s • 2DPC 1R Max speed up to 6400+ MT/s • 2DPC 2R Max speed up to 5600+ MT/s Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPO TM Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports CUDIMM, Clock Driver bypass mode only* * CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility. • The DIMM slots on this motherboard only have single-sided latches. • Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/. |
| Onboard Graphics | 1x HDMI™ Support HDMI TM 2.1, maximum resolution of 4K 60Hz* *Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed. |
| Slot | 1x PCI-E x16 slot (Qty) 1x PCI-E x1 slot (Qty) PCI_E1 Gen PCIe 4.0 supports up to x16 (From CPU) PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset) PCI_E1 slot • Supports PCIe 4.0 x16 (For Ryzen™ 9000/ 7000 Series processors) • Supports PCIe 4.0 x8 (For Ryzen™ 8700/ 8600/ 8400 Series processors) • Supports PCIe 4.0 x4 (For Ryzen™ 8500/ 8300 Series processors) |
| Audio | Realtek ® ALC897 7.1-Channel High Definition Audio |
| Storage | 2x M.2 (Qty) M.2_1 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices 4x SATA 6G (Qty) M2_2 slot • Supports up to PCIe 4.0 x4 • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors) *Please refer to the manual for M.2 SSD heatsink restrictions. |
| RAID | Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices Supports RAID 0 and RAID 1 for M.2 NVMe storage devices |
| USB | 4x USB 2.0 (Rear) 4x USB 2.0 (Front) 2x USB 5Gbps Type A (Rear) 2x USB 5Gbps Type A (Front) 1x USB 5Gbps Type C (Front) 1x USB 10Gbps Type A (Rear) 1x USB 10Gbps Type C (Rear) |
| LAN | Realtek ® 8125D 2.5G LAN |
| Internal IO | 1x Power Connector(ATX_PWR) 1x Power Connector(CPU_PWR) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 3x System Fan 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 1x Com Port (JCOM) 1x Tuning Controller connector(JDASH) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x RGB LED connector(JRGB) 1x TPM pin header(Support TPM 2.0) 4x USB 2.0 ports 2x USB 5Gbps Type A ports 1x USB 5Gbps Type C ports |
| WIRELESS LAN & BLUETOOTH | Wi-Fi 6E The Wireless module is pre-installed in the M.2 (Key-E) slot Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (160MHz) up to 2.4Gbps Supports 802.11 a/ b/ g/ n/ ac/ ax Supports Bluetooth ® 5.3**, FIPS, FISMA * 6GHz band support may depend on every country’s regulations and Wi-Fi 6E will be ready in Windows 11 version 24H2. ** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2. |
| LED FEATURE | 4x EZ Debug LED 1x EZ Memory Detection LED |
| BACK PANEL PORTS | Clear CMOS Button HDMI™ USB 10Gbps Type-A USB 2.0 2.5G LAN Wi-Fi / Bluetooth Audio connectors Flash BIOS Button USB 10Gbps Type-C USB 5Gbps Type-A |
| OPERATING SYSTEM | Support for Windows ® 11 64-bit |
Key Features
- AMD B840 chipset with support for AMD Ryzen™ 9000/8000/7000 Series desktop processors (Socket AM5).
- DDR5 memory – 4 DIMM slots, up to 256 GB, native speeds up to 8000 MT/s (OC) and 5600 MT/s JEDEC, with AMD EXPO support.
- PCIe 4.0 expansion – 1 × PCI‑E x16 slot (up to x16 for Ryzen 9000/7000, x8 for Ryzen 8700/8600/8400, x4 for Ryzen 8500/8300) and 1 × PCI‑E x1 slot.
- High‑speed storage – 2 × M.2 slots supporting PCIe 4.0 ×4, plus 4 × SATA 6 Gb/s ports; RAID 0/1/10 supported.
- Advanced connectivity – Integrated Wi‑Fi 6E (2.4/5/6 GHz, up to 2.4 Gbps) and Bluetooth 5.3, plus Realtek 8125D 2.5 GbE LAN.
- USB 10 Gbps ports – Rear: 1 × USB 10 Gbps Type‑A and 1 × USB 10 Gbps Type‑C; front includes additional USB 5 Gbps Type‑A/C and USB 2.0 ports.
- Audio and debugging – Realtek ALC897 7.1‑channel HD audio, 4 × EZ Debug LEDs and EZ Memory Detection LED for easy troubleshooting.
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